Sheet-delivery apparatus



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SHEET DELIVERY APPARATUS.

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SHEET DELIVERY APPARATUS.

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UNITED STATES PATENT OFFICE.

GEORG P. FENNER, OF NEV LONDON, CONNECTICUT.

SHEET-DELIVERY APPARATUS.

SPECIFICATION forming pari: of Letters Patent No. 324,245, dated August11, 1885.

Application tiled December 18, 1884. (No model.)

To all whom, it may concern.' v l Be it known that I, GEORGE P. FENNER,a

l citizen of the United States, residing at New 'side upward and withoutbeing touched on such side by any part of the apparatus. This object Ihave accomplished,as hereinafter described and illustrated in theaccompanying drawings, in which- Figure l is a side elevation of myapparatus, showing it applied to a printing-press. Fig. 2 is a plan ortop view thereof. Figs. 3 and 4. are details, and will be referred to asthis description progresses.

Similar letters indicate corresponding parts.

The letter A designates the press-frame,con structed to support therevolving impressioncylinder B and the type-bed C in proper relation toeach other. D indicates a spur-wheel arranged on a shaft, D, Fig. l, toengage a horizontal row or series of studs, C', on a pendent portion ofthe bed, alternately above and below the plane of the studs, forimparting the proper motion to the bed, and B', Fig. 2, denotes acog-wheel arranged on the shaft of the cylinder to gear with thedriving-shaft for imparting the proper motion to the cylinder.

In a suitable cavity of the cylinder B are arranged the usual grippers,B3; for holding the sheet to be printed on the cylinder, those grippersbeing opened and closed by trip-pins B4, acting on cam B5, Fig. 2, ofthe grippershaft B". The cylinder B makes two revolutions during acomplete traverse of the bed in both directions, and to adapt thegripper B3 to such motion of the cylinder the trip-pins B4 arealternately thrown out of action by means of a cam and cam-levers, thewhole constituting a press of well-known construction.

To one of the longitudinal edges ofthe bed Cis secured a rack, F, which`meshes into a gear, G, mounted on a stud, a, projecting from the frameA. This gear G, to which reverse motions are imparted by the rack F, asthe saine receives a reciprocating motion by the type-bed, carries achain-wheel, b, over which a chain, b, passes for transmitting thereverse motions of gear G to the shaft h. This shaft turns in bearingsin the vframe A, and on it are mounted chain-wheels c c,over whichchains dd pass to pulleys e e. These chains d d serve to impart areciprocating motion vto a sliding carriage, I, which is secured to themat fj'. In this carriage I are bearings for the shafts g g', whichrespectively carry tape-rolls H H', the relative distance between whichremains unchangedas the carriage is carried back and forth on theguide-rods J .I by the chains d d. These guide-rods are rigidly securedto the frame A ofthe press, and on them areV fixed brackets K K, theupper ends of which serve as bearings for the shaft ,carrying thechainpulleys e e, while the lower serve as bearings for the shaft j,carrying the iixed tape-roll L. In the frame near the inner ends of theguiderods J .I are formed bearings for a shaft,`k, on which are mountedthe tape-roll M and the pulley N. To this shaft a continuous motion inthe direction of arrow 1, Figs. 1 and 3, is transmitted by means of abelt, l, which passes over pulley N, Fig. 2, and the cylinder B. Thetapes m, for carrying the printed sheet from the cylinder, as they passover the various tape-rolls H, H, L, and M,{see Figs. 1 and,3,) have acontinuous motion in the direction of arrow 2, Figs. l, 2, and 3,independent of any motion of carriage I. Adj ustuble sheetguides O areplaced between the tape-roll M and the cylinder B in such a manner thatwhen the sheet leaves the cylinder the front edge is supported andguided onto the tapes m.

To raise the edge ofthe sheet from the cylinder after it has beenprinted and while the grippers B3 are open a series of sheet-litters, n,are mounted on a shaft, o, which has its bearings in the cylinder B, andone end of which is provided with alever, p. This lever carries at oneend a link, q, provided with a friction-roll, r, which bears on a cam,s, mounted on the gripper-shaft BG. (See Fig. et.)

Vhile the grippers are closed, as in Fig. l, the sheet-litters n liebelow the surface of the cylinder, but as the grippers are turned openand the cam s revolves the lever p is raised IOO against the action ol"the spring t, Fig. 1, thereby turning the shaft o and raising thesheet-litters n to the position shown in Fig. 3, and in dotted lines invFig. 4, thereby raising` the edge ofthe sheet from the cylinder and ontothe sheet-guides O, thus insuring a positive delivery from theiimpression-cylinder onto the tapes m.

The operation of my apparatus is as follows: The sheet as it is fed fromthe table is grasped by the grippers Ba in the cylinder B and is carriedover the type-bed C, where it is printed, and as the cylinder begins tomake its second revolution the grippers are opened, thereby bringing thesheet-lifting device above described into play, and the sheet is carriedover the sheet-guides O onto the moving tapes m, the position of whichat this stage of the operation is shown in Fig. b. AsV the revolution ofthe cylinder cJntinucs and the typebed carrying the rack F begins itsreverse motion the chains move in the direction of the arrows in Fig. 3,causing the carriage I to move in the direction of the arrow 3 until thetype-bed has reached the position shown in Fig. l, where the carriageIwill be in the position shown in said iigure.

' The cylinder is then in position to take a new sheet, and as thetype-bed passes under the cylinder the rack secured to it will turn thegear G and chains b' and d d, as indicated by arrows Z, in Fig. 1,thereby moving the carriage I away from under the sheet, while thecontinuous forward motion ofthe tapes m causes it to run ofi' thecarriage and against stops Q and drop onto the table P, therebycompleting the operation and delivering the sheet without having touchedits printed face.

What I claim as new, and desire to secure by Letters Patent, is-

l. The combination, substantially as hereinbefore described, 'with theimpressioncylinder and the type-bed,of the tape-roll M,n1eans,substantially such as described,for imparting to this tape-roll acontinuons revolving motion in one and the same direction, the tapecarriage I carried by guides,and mechanism,snb stantially such asdescribed, for imparting to this tape-carriage a reciprocating motion inthe line of travel of the tapes.

2. The combination, substantially as hereinbefore described,with theimpression-cylinder and the type-bed, of the sheet-delivery tapes m,passing over the rolls M L, which revolve in fixed bearings, and overthe rolls II H',which have their bearings in the tape-carriage I, thebelt Z for imparting to the tape-roll M a continuous revolving motion inthe same direction, and mechanism, substantially such as de scribed, forimparting to the tape-carriage a reciprocating motion.

3. The combination, substantially as hereinbefore described,withtheimpression-cylinder and the type-bed, of the sheet-delivery tapesm, passing over the rolls M L, which revolve in fixed bearings, and overthe rolls H H', which have their bearings in the tapecarriage I, means,substantially such as described,for imparting to tape-roll M acontinuous revolving motion, mechanism, substantially such as described,for imparting to the tapecarriage a reciprocating motion, thesheet-guides O, and the sheet-litters a.

4. rlhe combination, substantially as hereinbeiore described, with theimpression-cylinder and the type-bed, of the tape-carriage I, theendless chains d,to which the tape-carriage is attached, the endlesschain b', for imparting to chains d a reverse motion, the tape-rolls Mand L, mounted in fixed bearings, and the belt Z for imparting acontinuous revolving motion to the roll M.

In testimony whereof I have hereunto set my hand and seal in thepresence of two snbscribing witnesses.

GEORGE I. FENNER. [Ls] Witnesses:

GEORGE Comuni, EDWD. T. BROWN.

